Sine wave inverter



FIG. 1 is perspective view of a sine wave inverter, showing my design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the sine wave inverter which form no part of the claimed design. 

CLAIM The ornamental design for sine wave inverter, as shown and described. 